its powered by cig lighter, so you may have a dangling cord. it does have voice prompts too and the speaker is attached to the power cord. it comes with a beanbag mount that is very sturdy and mounts on top of the dash. it also has touchscreen, which OEM does not, and comes with a handy remote control. also, since its not linked directly to the X, you can input addresses and fully operate it while moving (not sure if you have to be in park w/ OEM, but many manufacturers have this built-in).